A canteen wastewater treatment oil-water separation device

Abstract

The application discloses a kind of oil-water separation equipment for mess hall wastewater treatment, and the application relates to the technical field of sewage treatment, in the process of aeration, the position of aeration hole is caused by insufficient air pressure or air pressure fluctuation to cause liquid backflow, cause gap to be backfilled by liquid, affect the process of aeration, by counterweight and sliding block connection, the air accumulation at the bottom is compared with the liquid pressure at the top, when the pressure on the upper and lower sides of the sliding block reaches the same size, by the sliding block and the counterweight connected together, the air pressure is greater than the liquid pressure at the top to a certain extent, only then can the sliding block be pushed to open the gap and aerate, avoid the process of aeration auxiliary oil-water separation, the position of aeration hole is caused by insufficient air pressure or air pressure fluctuation to cause liquid backflow, affect the export of gas.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to an oil-water separation device for treating canteen wastewater. Background Technology

[0002] Currently, oil-water separators are devices used in the catering industry, suitable for places like power company canteens. They are mainly used to separate grease, water, and solid impurities from catering wastewater. Their working principle typically utilizes physical methods such as gravity separation, centrifugal separation, coalescence separation, and flotation separation. Oily wastewater flows through a specific device or structure, separating the oil and water. This helps reduce the grease content in wastewater, lowers the risk of clogging drainage pipes, and extends pipe lifespan. Secondly, it reduces the amount of grease entering the wastewater treatment system, lowering the difficulty and cost of wastewater treatment. When microbubbles are introduced into the oily wastewater, oil droplets collide with and adhere to the bubble surface. This is because oil droplets have a certain degree of hydrophobicity and tend to combine with bubbles. The bubbles with attached oil droplets move upwards due to buoyancy, carrying the oil droplets with them. During the ascent, the bubbles continuously merge and grow larger, increasing the upward speed. However, during the aeration process, insufficient or fluctuating air pressure at the aeration holes can cause liquid backflow, resulting in liquid overflowing into the gaps and affecting the aeration process. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution: an oil-water separation device for treating canteen wastewater, comprising: a separation chamber, which provides a site for oil-water separation, wherein a partition is fixedly installed inside the separation chamber, dividing the separation chamber into a filtration zone and a separation zone; a blower is fixedly installed at the center of the bottom of the separation chamber; an inlet pipe is fixedly installed on one side of the separation chamber; an oil outlet pipe and a collection chamber are installed on the other side of the separation chamber, the collection chamber being located directly below the oil outlet pipe; and a base is fixedly installed at the bottom of the separation chamber; a ventilation mechanism, which is used to vent air upwards from the bottom of the mixed liquid to assist in oil-water separation during separation; the ventilation mechanism is installed at the bottom of the separation zone of the separation chamber, and the bottom of the ventilation mechanism is connected to the output end of the blower through a pipe; a filtration mechanism, which is used to filter the residue in the mixed liquid, and the filtration mechanism is installed in the filtration zone of the separation chamber; and a material guiding mechanism, which is used to guide the filtered residue... The material is collected and guided; the material guiding mechanism is installed on the top of the separation chamber; wherein, the ventilation mechanism includes an orifice plate, which is fixedly installed on the inner wall of the separation chamber, and the top of the orifice plate is evenly provided with slots, and a ventilation cylinder is fixedly installed at each slot of the orifice plate. A sealing block is fixedly installed at the bottom of the inner wall of the ventilation cylinder, and a through groove is provided on the top of the sealing block. A sliding block is slidably installed at the through groove of the sealing block, and the sliding block is adapted to the through groove of the sealing block. A counterweight is fixedly installed at the bottom of the sliding block. The counterweight is connected to the sliding block, so that air accumulates at the bottom. When the pressure on the upper and lower sides of the sliding block reaches the same level as the liquid pressure at the top, the air pressure must be greater than the liquid pressure at the top by a certain amount through the connected sliding block and counterweight before the sliding block can be pushed to open the gap for ventilation. This avoids liquid backflow at the ventilation hole due to insufficient air pressure or fluctuations during the venting-assisted oil-water separation process, which would affect the gas output.

[0004] Preferably, an annular groove is formed at the top of the outer side of the venting cylinder, and a stirring ring is rotatably installed at the annular groove of the venting cylinder. Spiral stirring plates are evenly arranged on the outer side of the stirring ring, and air holes are evenly formed on the outer side of the venting cylinder. A curved bottom plate is fixedly installed at the bottom of the perforated plate, and the two sides of the bottom of the inner wall of the curved bottom plate are lower than the center position. The air holes of the venting cylinder are located below the stirring ring, and a ring frame is fixedly installed at the air holes on the outer side of the venting cylinder. A baffle plate is fixedly installed on the inner wall of the ring frame. By aligning the baffle plate with the air holes of the venting cylinder, the outgoing air collides with the baffle plate, and the air bubbles are broken into multiple small bubbles under the impact. In conjunction with the stirring ring, the air diffusion range is expanded better, and the bubbles come into better contact with the oil and are brought to the liquid surface more quickly for oil-water separation. The baffle plate is evenly installed along the center position of the ring frame, and the baffle plate is an arc-shaped plate that corresponds one-to-one with the air holes of the venting cylinder.

[0005] Preferably, the filtration mechanism includes a filter chamber, with a feed hole at one end of the filter chamber near the feed pipe. An anti-overflow ring is fixedly installed at the feed hole of the filter chamber. The filter chamber is connected to the feed pipe through the anti-overflow ring. A baffle plate is fixedly installed on the top of the inner wall of the filter chamber. The baffle plate reduces the impact range when wastewater is introduced and collects the filtered food residue during the filtration process. Together with the guiding mechanism, the residue in the wastewater is better discharged. The baffle plate is symmetrically installed at the center of the filter chamber's axis. Filter holes are evenly distributed at the bottom of the filter chamber. Side plates are fixedly connected to both sides of the bottom of the filter chamber.

[0006] Preferably, a guide plate is fixedly installed at the bottom of the filter chamber. The guide plate is an inclined arc plate, and a slag-blocking strip is installed on the top of the guide plate. The slag-blocking strip is evenly installed on the top of the guide plate. The two sides of the guide plate are tightly fitted to the opposite surfaces of the side plates. An arc groove strip is fixedly connected to the bottom end of the guide plate. An arc groove is formed on one side of the arc groove strip. The arc groove strip cooperates with the slag-blocking strip to block small food residues under the action of water flow. At the same time, the arc groove of the arc groove strip reduces the water flow speed and ensures the filtration and removal effect of small residues. There is a gap between the other side of the arc groove strip and the inner wall of the separation chamber.

[0007] Preferably, the material guiding mechanism includes a material guiding cylinder, which is inclinedly disposed at the top of the separation chamber, and the bottom end of the material guiding cylinder penetrates the separation chamber and extends into the interior of the filtration chamber. A connecting plate is fixedly installed at the top of the material guiding cylinder. Liquid holes are opened at both the upper and lower ends of the outer side of the material guiding cylinder. A motor is fixedly installed at the top of the connecting plate. The output end of the motor penetrates the connecting plate and extends into the interior of the material guiding cylinder, and a rotating shaft is fixedly installed at the output end of the motor. An auger plate is fixedly installed on the outer side of the rotating shaft, and the auger plate... The outer side is evenly provided with notches, and the outer side of the guide cylinder is provided with a discharge port. A connecting chamber is installed at the discharge port of the guide cylinder. A slag collection chamber is fixedly installed at the bottom of the connecting chamber. The lower half of the slag collection chamber is located in the separation zone of the separation chamber. After the residue in the wastewater is discharged through the water control trough at the bottom of the slag collection chamber, the wastewater on the surface of the residue can still be controlled out and fall back into the separation zone for oil-water separation. This avoids the situation where a large amount of wastewater still needs to be treated when processing the residue. Furthermore, water control troughs are symmetrically provided at the bottom of the outer side of the slag collection chamber.

[0008] This invention provides an oil-water separation device for treating canteen wastewater. It has the following beneficial effects:

[0009] 1. The oil-water separation equipment for the canteen wastewater treatment uses a counterweight and a sliding block to create air accumulation at the bottom. When the pressure on both sides of the sliding block reaches the same level as the liquid pressure at the top, the air pressure must be greater than the liquid pressure at the top by a certain amount through the connected sliding block and counterweight before the sliding block can be pushed to open the gap for ventilation. This prevents liquid backflow due to insufficient or fluctuating air pressure at the ventilation holes during the oil-water separation process, which would affect the gas output.

[0010] II. The oil-water separation equipment for treating canteen wastewater uses baffles that correspond to the air holes of the air vent. This causes the outgoing air to collide with the baffles, breaking the air bubbles into smaller bubbles. In conjunction with the stirring ring, the air diffusion range is expanded, allowing the bubbles to come into better contact with the oil and be brought to the liquid surface more quickly for oil-water separation.

[0011] Third, the oil-water separation equipment for the canteen wastewater treatment reduces the impact range when the wastewater is introduced by using a baffle plate. At the same time, during the filtration process, the filtered food residue is collected, and with the help of the feeding mechanism, the residue in the wastewater is better discharged.

[0012] IV. The oil-water separation equipment for the canteen wastewater treatment uses arc groove bars and slag-blocking bars to block small food residues as they are carried by the water flow. At the same time, the arc grooves of the arc groove bars reduce the water flow speed, ensuring the effective filtration and removal of small residues.

[0013] 5. The oil-water separation equipment for the canteen's wastewater treatment uses a water control tank at the bottom of the slag collection bin. After the residue in the wastewater is discharged, the wastewater on the surface of the residue can still be controlled out and fall back into the separation zone for oil-water separation, thus avoiding the situation where a large amount of wastewater still needs to be treated when processing the residue. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of an oil-water separation device for treating canteen wastewater according to the present invention.

[0015] Figure 2 This is a side view of the structure of an oil-water separation device for treating canteen wastewater according to the present invention.

[0016] Figure 3 This is a partial structural cross-sectional view of an oil-water separation device for treating canteen wastewater according to the present invention.

[0017] Figure 4 This is a schematic diagram of the ventilation mechanism of the present invention.

[0018] Figure 5 This is a schematic diagram of the ventilation mechanism of the present invention.

[0019] Figure 6This is a cross-sectional view of the ventilation mechanism of the present invention.

[0020] Figure 7 This is a schematic diagram of the filtration mechanism of the present invention.

[0021] Figure 8 This is a cross-sectional view of the filter mechanism of the present invention.

[0022] Figure 9 This is a schematic diagram of the material guiding mechanism of the present invention.

[0023] Figure 10 This is a cross-sectional view of the material guiding mechanism of the present invention.

[0024] In the diagram: 1. Separation chamber; 2. Ventilation mechanism; 3. Filtration mechanism; 4. Material guiding mechanism; 5. Baffle plate; 6. Fan; 7. Base; 8. Oil outlet pipe; 9. Collection chamber; 10. Feed pipe; 21. Orifice plate; 22. Bending bottom plate; 23. Ventilation cylinder; 24. Ring frame; 25. Baffle plate; 26. Stirring ring; 27. Sealing block; 28. Sliding block; 29. ​​Counterweight block; 31. Filtration chamber; 32. Overflow ring; 33. Side plate; 34. Baffle plate; 35. Guide plate; 36. Slag-blocking strip; 37. Arc groove strip; 41. Material guide cylinder; 42. Motor; 43. Connecting chamber; 44. Slag collection chamber; 45. Connecting plate; 46. Rotating shaft; 47. Screwdriver plate. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0026] First embodiment, such as Figures 1 to 6As shown, the present invention provides a technical solution: an oil-water separation device for treating canteen wastewater, comprising: a separation chamber 1, which provides a site for oil-water separation, and a partition 5 is fixedly installed inside the separation chamber 1, dividing the separation chamber 1 into a filtration zone and a separation zone by the partition 5; a blower 6 is fixedly installed at the center of the bottom of the separation chamber 1; an inlet pipe 10 is fixedly installed on one side of the separation chamber 1; and an oil outlet pipe 8 and a collection chamber 9 are installed on the other side of the separation chamber 1, with the collection chamber 9 located directly below the oil outlet pipe 8; and a base 7 is fixedly installed at the bottom of the separation chamber 1; an aeration mechanism 2, which is used to vent upwards from the bottom of the mixed liquid to assist in oil-water separation during separation; the aeration mechanism 2 is installed at the bottom of the separation zone of the separation chamber 1, and the bottom of the aeration mechanism 2 is connected to the output end of the blower 6 through a pipe; a filtration mechanism 3, which is used to filter the residue in the mixed liquid, and the filtration mechanism 3 is installed in the filtration zone of the separation chamber 1; and a material guiding mechanism 4, which is used to guide the filtered liquid... The residue is guided and collected; and the guiding mechanism 4 is installed on the top of the separation chamber 1; wherein, the ventilation mechanism 2 includes an orifice plate 21, which is fixedly installed on the inner wall of the separation chamber 1, and the top of the orifice plate 21 is evenly provided with slots, and ventilation cylinders 23 are fixedly installed at the slots of the orifice plate 21. A sealing block 27 is fixedly installed at the bottom of the inner wall of the ventilation cylinder 23, and a through groove is provided on the top of the sealing block 27. A sliding block 28 is slidably installed at the through groove of the sealing block 27, and the sliding block 28 is connected to the through groove of the sealing block 27. The adapter is fixed to the inner wall of the separation chamber 1 by the perforated plate 21, and connected to the pipe of the fan 6 by the center of the bottom curved plate 22, so that the air gathers in the gap between the curved plate 22 and the perforated plate 21. After the air pressure reaches a certain level, it can push the sliding block 28 inside the sealing block 27 to drive the counterweight block 29 to slide upward, so that the through groove inside the sealing block 27 opens, allowing the air to be discharged through the air hole of the air pipe 23. The counterweight block 29 is fixedly installed at the bottom of the sliding block 28.

[0027] A ring groove is provided on the top of the outer side of the ventilator 23. A stirring ring 26 is rotatably installed in the ring groove of the ventilator 23. Spiral stirring plates are evenly arranged on the outer side of the stirring ring 26. Air holes are evenly provided on the outer side of the ventilator 23. A curved bottom plate 22 is fixedly installed at the bottom of the perforated plate 21. The two sides of the bottom of the inner wall of the curved bottom plate 22 are lower than the center position. The air holes of the ventilator 23 are located below the stirring ring 26. A ring frame 24 is fixedly installed at the air holes on the outer side of the ventilator 23. A baffle plate 25 is fixedly installed on the inner wall of the ring frame 24. During the air exhaust process, the air holes exhaust the air to the surrounding areas. During the exhaust process, the baffle plate 25 cooperates with the stirring ring 26 to block the air flow and turn it into more small bubbles. The baffle plate 25 is evenly installed along the center position of the ring frame 24. The baffle plate 25 is an arc-shaped plate and corresponds one-to-one with the air holes of the ventilator 23.

[0028] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 7 to 8 As shown, the filtration mechanism 3 includes a filter chamber 31. A feed hole is provided at one end of the filter chamber 31 near the feed pipe 10, and an anti-overflow ring 32 is fixedly installed at the feed hole of the filter chamber 31. The filter chamber 31 is connected to the feed pipe 10 through the anti-overflow ring 32. A baffle plate 34 is fixedly installed on the top of the inner wall of the filter chamber 31. The baffle plate 34 is symmetrically installed at the center position of the axis of the filter chamber 31, and filter holes are evenly provided at the bottom of the filter chamber 31. The liquid introduced by the feed pipe 10 enters the filter chamber 31 and filters large food residues in the wastewater through the filter holes at the bottom of the filter chamber 31, so that the fine residues and wastewater pass through the filter chamber 31 together and fall on the top of the guide plate 35. Guided by the guide plate 35, the wastewater cooperates with the side plates 33 on both sides to guide the flow of the wastewater along the guide plate 35. Side plates 33 are fixedly connected to both sides of the bottom of the filter chamber 31.

[0029] A guide plate 35 is fixedly installed at the bottom of the filter chamber 31. The guide plate 35 is an inclined arc plate, and a slag-blocking strip 36 is installed on the top of the guide plate 35. The slag-blocking strip 36 is evenly installed on the top of the guide plate 35. The two sides of the guide plate 35 are tightly fitted to the opposite surfaces of the side plate 33. An arc groove strip 37 is fixedly connected to the bottom end of the guide plate 35. An arc groove is opened on one side of the arc groove strip 37. During the flow, the slag-blocking strip 36 and the arc groove strip 37 work together to remove and filter the fine residues in the wastewater. At the same time, when the wastewater flows along the guide plate 35 and impacts the arc groove strip 37, the impact force is buffered by the arc groove of the arc groove strip 37, so that the liquid overflows from the top of the arc groove strip 37 and enters the separation zone of the separation chamber 1 through the gap between the arc groove strip 37 and the separation chamber 1. There is also a gap between the other side of the arc groove strip 37 and the inner wall of the separation chamber 1.

[0030] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 9 to 10As shown, the material guiding mechanism 4 includes a material guiding cylinder 41, which is inclinedly disposed at the top of the separation chamber 1. The bottom end of the material guiding cylinder 41 penetrates the separation chamber 1 and extends into the interior of the filter chamber 31. A connecting plate 45 is fixedly installed at the top of the material guiding cylinder 41. Liquid holes are opened at both the upper and lower ends of the outer side of the material guiding cylinder 41. A motor 42 is fixedly installed at the top of the connecting plate 45. The output end of the motor 42 penetrates the connecting plate 45 and extends into the interior of the material guiding cylinder 41. A rotating shaft 46 is fixedly installed at the output end of the motor 42. An auger plate 47 is fixedly installed on the outer side of the rotating shaft 46. When the motor 42 is started by the operator, it drives the rotating shaft 46 to rotate, which in turn drives the auger plate 47 to rotate. The auger plate 47 drives the food residue, causing it to move towards the outlet of the guide cylinder 41. The auger plate 47 has evenly spaced grooves on its outer side, and the guide cylinder 41 has an outlet on its outer side. A connecting chamber 43 is installed at the outlet of the guide cylinder 41, and a slag collection chamber 44 is fixedly installed at the bottom of the connecting chamber 43. The lower half of the slag collection chamber 44 is located in the separation zone of the separation chamber 1. The food residue is guided into the slag collection chamber 44 through the connecting chamber 43. The liquid in the food residue is controlled out through the water control groove at the bottom of the slag collection chamber 44 and drips back into the separation zone of the separation chamber 1 for oil-water separation. The bottom of the outer side of the slag collection chamber 44 has symmetrical water control grooves.

[0031] In use, workers connect the wastewater pipe to the feed pipe 10, allowing the wastewater to be introduced into the oil-water separation equipment through the feed pipe 10. The wastewater first passes through the filter mechanism 3 to filter out food residues from the canteen wastewater. After passing through, the solid residues inside the wastewater are filtered out, and the oil-water mixture passes through the filter mechanism 3 into the separation zone of the separation chamber 1. The air introduced by the blower 6 through the ventilation mechanism 2 is introduced into the oil-water mixture to assist in oil-water separation, causing the oil to float on the surface of the liquid. The oil is discharged through the oil outlet pipe 8 and collected in the collection chamber 9. At the same time, the residue filtered out by the filter mechanism 3 is discharged and collected through the material guiding mechanism 4.

[0032] When the wastewater is filtered by the filter mechanism 3, the liquid introduced through the feed pipe 10 enters the filter chamber 31. Large food residues in the wastewater are filtered through the filter holes at the bottom of the filter chamber 31, while small residues pass through the filter chamber 31 with the wastewater and fall onto the top of the guide plate 35. Guided by the guide plate 35 and in cooperation with the side plates 33 on both sides, the wastewater flows along the guide plate 35. At the same time, during the flow, the small residues in the wastewater are removed and filtered by the cooperation of the slag-blocking strip 36 and the arc groove strip 37. When the wastewater flows along the guide plate 35 and impacts the arc groove strip 37, the arc groove of the arc groove strip 37 buffers the impact force, allowing the liquid to overflow from the top of the arc groove strip 37 and enter the separation zone of the separation chamber 1 through the gap between the arc groove strip 37 and the separation chamber 1.

[0033] After the wastewater containing food residue enters the separation zone of separation chamber 1, the air discharged by the blower 6 through the ventilation mechanism 2 is discharged from the bottom of the mixed liquid. This works in conjunction with the characteristic that oil floats on the water surface. The air is fixed to the inner wall of separation chamber 1 by the perforated plate 21. At the same time, the air is connected to the pipe of the blower 6 through the center of the bottom curved plate 22, so that the air accumulates in the gap between the curved plate 22 and the perforated plate 21. When the air pressure reaches a certain level, it can push the sliding block 28 inside the sealing block 27 to drive the counterweight block 29 to slide upward, so that the through groove inside the sealing block 27 opens, allowing the air to be discharged through the air hole of the ventilation cylinder 23. During the air discharge process, the air hole discharges the air to all sides. During the discharge process, the baffle plate 25 cooperates with the stirring ring 26 to block the air flow and turn it into more small bubbles.

[0034] When the filtered food residue accumulates in the filter chamber 31, the motor 42 in the feeding mechanism 4 is started by the worker, driving the rotating shaft 46 to rotate. The rotating shaft 46 drives the auger plate 47 to rotate. Through the auger plate 47 driving the food residue, the auger plate 47 moves the food residue to the outlet of the feeding cylinder 41. The residue is guided into the slag collection chamber 44 through the connecting chamber 43. Through the water control trough opened at the bottom of the slag collection chamber 44, the liquid in the food residue is controlled out and drips back into the separation area of ​​the separation chamber 1 for oil-water separation.

[0035] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An oil-water separation device for treating canteen wastewater, characterized in that, include: A separation chamber (1) provides a space for oil-water separation. A partition (5) is fixedly installed inside the separation chamber (1), dividing it into a filtration zone and a separation zone. A fan (6) is fixedly installed at the center of the bottom of the separation chamber (1). A feed pipe (10) is fixedly installed on one side of the separation chamber (1), and an oil outlet pipe (8) and a collection chamber (9) are installed on the other side of the separation chamber (1). The collection chamber (9) is located directly below the oil outlet pipe (8). A base (7) is fixedly installed at the bottom of the separation chamber (1). A ventilation mechanism (2) is used to vent air upwards from the bottom of the mixed liquid during separation to assist in oil-water separation. A venting mechanism (2) is installed at the bottom of the separation zone of the separation chamber (1), and the bottom of the venting mechanism (2) is connected to the output end of the blower (6) through a pipe; a filtration mechanism (3) is used to filter the residue in the mixed liquid, and the filtration mechanism (3) is installed in the filtration zone of the separation chamber (1); a material guiding mechanism (4) is used to guide and collect the filtered residue; and the material guiding mechanism (4) is installed at the top of the separation chamber (1); wherein, the venting mechanism (2) includes a perforated plate (21), the perforated plate (21) is fixedly installed on the inner wall of the separation chamber (1), and the top of the perforated plate (21) is evenly provided with slots, and the slots of the perforated plate (21) are evenly provided with slots. A ventilator (23) is fixedly installed. A sealing block (27) is fixedly installed at the bottom of the inner wall of the ventilator (23). A through groove is opened at the top of the sealing block (27), and a sliding block (28) is slidably installed at the through groove of the sealing block (27). The sliding block (28) is adapted to the through groove of the sealing block (27), and a counterweight (29) is fixedly installed at the bottom of the sliding block (28). The filter mechanism (3) includes a filter chamber (31). A feed hole is opened at one end of the filter chamber (31) near the feed pipe (10), and an anti-overflow ring (32) is fixedly installed at the feed hole of the filter chamber (31). The filter chamber (31) is connected to the feed pipe (10) through the anti-overflow ring (32). A baffle plate (34) is fixedly installed on the top of the inner wall of the filter chamber (31). The baffle plate (34) is symmetrically installed along the center of the axis of the filter chamber (31). Filter holes are evenly opened at the bottom of the filter chamber (31). Side plates (33) are fixedly connected to both sides of the bottom of the filter chamber (31). A ring groove is opened on the top of the outer side of the air cylinder (23). A stirring ring (26) is rotatably installed at the ring groove of the air cylinder (23). Spiral stirring plates are evenly arranged on the outer side of the stirring ring (26). Air holes are evenly opened on the outer side of the air cylinder (23). A curved bottom plate (22) is fixedly installed at the bottom of the perforated plate (21). The two sides of the bottom of the inner wall of the curved bottom plate (22) are lower than the center position.

2. The oil-water separation equipment for canteen wastewater treatment according to claim 1, characterized in that: The air hole of the vent (23) is located below the stirring ring (26), and a ring frame (24) is fixedly installed at the air hole on the outside of the vent (23). A baffle plate (25) is fixedly installed on the inner wall of the ring frame (24). The baffle plate (25) is evenly installed along the center position of the ring frame (24), and the baffle plate (25) is an arc-shaped plate that corresponds one-to-one with the air hole of the vent (23).

3. The oil-water separation equipment for canteen wastewater treatment according to claim 1, characterized in that: A guide plate (35) is fixedly installed at the bottom of the filter chamber (31). The guide plate (35) is an inclined arc plate, and a slag-blocking strip (36) is installed on the top of the guide plate (35). The slag-blocking strip (36) is evenly installed on the top of the guide plate (35).

4. The oil-water separation equipment for canteen wastewater treatment according to claim 3, characterized in that: The two sides of the guide plate (35) are closely fitted to the opposite surfaces of the side plate (33), and an arc groove strip (37) is fixedly connected to the bottom end of the guide plate (35). An arc groove is opened on one side of the arc groove strip (37), and there is a gap between the other side of the arc groove strip (37) and the inner wall of the separation chamber (1).

5. The oil-water separation equipment for canteen wastewater treatment according to claim 1, characterized in that: The material guiding mechanism (4) includes a material guiding cylinder (41), which is inclinedly arranged on the top of the separation chamber (1), and the bottom end of the material guiding cylinder (41) penetrates through the separation chamber (1) and extends into the interior of the filter chamber (31). A connecting plate (45) is fixedly installed on the top end of the material guiding cylinder (41), and liquid holes are opened at both the upper and lower ends of the outer side of the material guiding cylinder (41).

6. The oil-water separation equipment for canteen wastewater treatment according to claim 5, characterized in that: A motor (42) is fixedly installed on the top of the connecting plate (45). The output end of the motor (42) passes through the connecting plate (45) and extends into the inside of the guide cylinder (41). A rotating shaft (46) is fixedly installed on the output end of the motor (42). An auger plate (47) is fixedly installed on the outside of the rotating shaft (46). The auger plate (47) has grooves evenly opened on the outside.

7. The oil-water separation equipment for canteen wastewater treatment according to claim 6, characterized in that: The outer side of the guide cylinder (41) is provided with a discharge port, and a connecting chamber (43) is installed at the discharge port of the guide cylinder (41). A slag collection chamber (44) is fixedly installed at the bottom of the connecting chamber (43). The lower half of the slag collection chamber (44) is located in the separation zone of the separation chamber (1), and a water control trough is symmetrically provided at the bottom of the outer side of the slag collection chamber (44).

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